<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
<!--        <MyHeader :addTodo="addTodo"/>-->
        <MyList
          :todos="todos"
          :checkTodo="checkTodo"
          :delectTodo="delectTodo"
        />
        <MyFooter
          :todos="todos"
          :checkAllTodos="checkAllTodos"
          :delectCheckedTodos="delectCheckedTodos"
        />
      </div>
    </div>
  </div>

</template>

<script>
import MyHeader from "../sys_user/MyHeader";
// 因为MyItem是MyList中的组件，因此在App组件中不需要再引入MyItem组件
import MyList from "../sys_user/MyList";
import MyFooter from '../sys_user/MyFooter';
export default {
  name: 'App',
  components: {MyHeader, MyList, MyFooter},
  data() {
    return {
      //由于todos是MyHeader组件和MyFooter组件都在使用，所以放在App中（状态提升）
      todos: [
        {id: '001', content: '进行个人信息补充', done: false},
        {id: '002', content: '参观教学楼', done: false},
        {id: '003', content: '参观宿舍楼', done: false},
        {id: '004', content: '参观食堂', done: false},
        {id: '005', content: '进行迎新签到确认', done: false},

      ]
    }
  },
  methods: {
    // 勾选或取消单个todo
    checkTodo(id) {
      this.todos.forEach((todo) => {
        if (todo.id === id) {
          todo.done = !todo.done;
        }
      })
    },
    // 删除单个todo
    delectTodo(id) {
      this.todos = this.todos.filter(todo => todo.id !== id);
    },
    // 全选或全不选todos
    checkAllTodos(done) {
      this.todos.forEach((todo) => {
        todo.done = done;
      })
    },
    // 删除选中的所有项
    delectCheckedTodos() {
      this.todos = this.todos.filter(todo => !todo.done);
    }

  }
}

</script>

<style>
/*base*/
body {
  background: #fff;
}
.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}
.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}
.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}
.btn:focus {
  outline: none;
}
.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
